A woman walks her dogs by police temporarily blocking protesters from entering one of the main roads into the capital, on the outskirts of Buenos Aires, Argentina. Opposition labour unions are demanding more jobs, better salaries and tax cuts with protests and a 36-hour strike

Christine Baker wades through flood water, pulling her dog Archie in a boat, at the Abbey Fields caravan park after the river Thames flooded on Wednesday in Chertsey, England. Parts of the UK are entering a third week of flooding and stormy conditions.

Dan McManus and his service dog Shadow hang glide together outside Salt Lake City, Utah, on Monday. Mr McManus suffers from anxiety and Shadow’s presence and companionship help him to manage the symptoms. The two have been flying together for about nine years with a specially made harness for Shadow.

Miller, a Transit Police dog, watches commuters at Back Bay Station a day after two explosions in Boston. Miller, a Transit Police dog with the Massachusetts Transportation Authority Explosives Detection Unit, watches as commuters enter the subway system at Back Bay Station a day after two explosions near the finish line of the Boston Marathon in Boston, Massachusetts April 16, 2013.